Home / 27,882.14-38,476.87-15,306.80

Finding the Fourth Proportional to 27,882.14, 38,476.87 and 15,306.80

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Solution

The fourth proportional to 27,882.14, 38,476.87 and 15,306.80 is: 21,123.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,882.14 : 38,476.87 = 15,306.80 : x
  2. Step 2: Convert to fraction form
    27,882.14/38,476.87 = 15,306.80/x
  3. Step 3: Cross multiply
    27,882.14x = 38,476.87 × 15,306.80
  4. Step 4: Simplify right side
    27,882.14x = 588,957,523.06
  5. Step 5: Solve for x
    x = 588,957,523.06/27,882.14
  6. Step 6: Final answer
    x = 21,123.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.